Cock or faucet.



STATES UFFT.

ANTON G. SCHUEBMANN, OF DECATUR, ILLINOIS, ASSIGNOR TO H. INIUELLER MFG.CO., OF DECATUR, ILLINOIS, A CORPORATION OF ILLINOIS.

COCK 0B, FAUCE'T.

Application filed. september 13, 1913.

To all whom it may concern Be it known that I, AN'roN G. Sonora MANN, acitizen of the United States, residing at Decatur, in the county ofMacon and State of Illinois, have invented new and useful Improvementsin Cocks or Faucets, of which the following is a specification.

This invention relates to an improvement in self-closing cocks whereinthe valve is op-' erated to close with the pressure, the inventionhaving for an object to provide a cock with a casing of a form admittingof the ready removal and replacement of the operative parts, wherein thevalve seat may be easily reground and the valve be repacked withoutremoving all of the parts within the cock, wherein the valve seat servesto support the valve in position and guide the same in its movements,and wherein the casing has uninterrupted passages or channels to whichaccess may be readily gained for cleansing and other purposes.

With the above object in view, the invention also comprehends theprovision of a compact device, the parts of which are so peculiarlyconstructed and assembled that the parts may be substantially formed andeconomically produced, thus providing 'a cock which possesses greatpractical advantages not only in its use, but also in its manui'acture.

A further object of this invention is to provide the cock with animproved handle, which may be firmly grasped in the hand when the latteris damp, the handle being of disk shape and provided with spaced notchesin its edge for the reception of the fingers, and knurled or otherwiseroughened projections located between the notches against which arebrought the portions of the fingers which do not extend into thenotches.

Other objects and advantages of this invention will be brought out inthe following detailed description of the present embodiment of theinvention, and illustrated in the accompanying drawing, in which,

Figure 1 is a vertical and central longitudinal section taken throughthe improved cock, Fig. 2 is a horizontal longitudinal seotion takencentrally through the same, the valve member being shown in plan, Fig. 8is a top plan View of the handle of the cock, Fig. 1 is a bottom planview of the valve and its operating member.

- Specification of Letters Patent.

Patented Aug. 18, 114L Serial No. 789,648.

Referring to the drawing, in which like parts are designated throughoutthe several views by similar reference numerals, 10 designates thecasing or body of the cock which 1s preferably of spherical form andprovided with a detachable nozzle or outlet 11, threaded into the lowerside of the casing. A shank 12 extends inwardly from the casing andpreferably forms a part thereof, the shank terminating in an intcriorlyand exteriorly threaded flange 13, having its outer surface reduced toprovide an exterior annular shoulder 14-. A stem guide or cap 15 isthreaded into the upper side of the casing 10 and carries theretliroughfor rotation an operating stem 16, projecting at its lower end into thecasing 10, and at its upper end beyond the stem guide 15. A suitablepack ing gland 17 is threaded over the upper end of the stem guide 15and compresses an annular packing 18 within a recessed portion formed inthe upper end of the stem guide 15, and against the operating stem 16.

The operating stem 16 carries an improved handle, the same being in theform of a disk 19 provided with a central depending boss 20 suitablyapertured for the reception of the upper end of the stem 16, the latterbeing held within the boss by a set screw 21 passing inwardly throughone side of the boss. The disk 19 is provided in its periphery with aplurality of spaced notches 22 for the reception of the fingers of theoperator, and providing between each pair of the notches a projection 23forming a shoulder for engagement against the finger to insure a firmgrasp upon the handle. The outer ends of the projections 23 are milledor otherwise roughened to further insure a firm grasp of the handle.

Fixed upon the lower end of the operating stem 16 is a disk 24 engagingat its upper side against the lower end of the stem guide 15 to hold theoperating stem 16 from displacement up through the stem guide. It willbe noted that this disk 24 is of substantially the same diameter as thediameter of the lower end of the stem guide 15, thereby admitting of theremoval 01 the disk 2 up through the casing 10 with the stem guide 15.The disk 24L carries a cam 25 depending from the disk and having astraight side lying in parallelism with the diameter of the disk andhaving its opposite side formed into a pair of diverging faces of equallength and extending inwardly to the ends of the cam. From Figs. 1 and2'it will be noted that the cam 25 lies normally in such position thatthe inclined faces thereof are directed away from the shank 12.. Avalveoperating member is located within the easing and the shank and is intheform of a cylindrical block 26 having its underside grooved to form apassage 27 betweenthe nozzle 11 and the rear end of the shank 12. Theupper side, at the forward end of the block 26, is cut away to provide awall or stop 28, the inner side of which is formed into a pair ofinclined faces diverging from the faces upon the cam 25 and adapted toreceive the cam faces thereagainst when the stem is rotated to limitsuch rotation. The

inner wall or shoulder 29 formed by the said cutaway portion in theblock 26 normally receives thereagainst. the straight side or face ofthe cam 25. A recess 30 is formed in the block 26 in its upper side andinwardly of the shoulder 29 for the reception of the rear portion of thedisk 24. The shoulder 29 forms a stop determining the neutral positionof the operating stem 16. An aperture 31 forms a passage between thechannel 27 and the upper side of the block 26 at its forward end.

A reduced. rounded valve stem 32 projects rearwardly from the block 26and is threaded upon its extremity. An annular shoulder 33 is formedupon the stem 32 at the for-. ward end of the threaded portion for thereception of a suitable packing of rubber, leather, or composition,housed within the recessed face of the disk 34. The disk 34 is disposedin threaded relation upon the extremity of the stem 32, and is screwedtoward the shoulder 33 to bind the packing thereagainst, the disk 34 andits packing constituting a valve.

Carried about the stem 32 is a valve seat 35 in the form of an annulusor ring being externally threaded at its forward end for engagement inthe extremity of the shank 12. The valve seat 35 has a hollow passagewaysurrounding and spaced from the stem 32. An annular shoulder is formedin the periphery of the valve seat 35 midway of its ends and bearsagainst the flange 13 of the shank to hold the valve seat in position.

The improved cock is provided with an attaching shank 36 beingexternally threaded and provided midway of its ends with an internalshoulder 37, receiving thereagainst the inner end of a coil spring 38extending forwardly within the attaching shank 36. The forward end ofthe attaching shank terminates in an enlarged head 39 loosely housingthe valve and having internal threads engaging with the threads upon theflange 13. The head 39 bears against the shoulder 14 of the shank 12 andbinds the shanks 12 and 36' together. The spring 38 bears at its forwardend against the disk 34 and normally holds the packing against the seat35.

In operation, the valve 34 being normally closed by the spring 38, whenit is desired to open the cook the operator turns the disk handle 19,partially rotating the operating stem 16. The stem 16 turns the cam 25to bring one end of the straight side thereof against the shoulder 29,which movement eflects the sliding of the cylindrical block 26 backwithin the shank 12 and moves the valve away from the seat 35 againstthe tension of the spring 38. The lip 28 of'the sliding block 26 engagesthe inclined faces'of the cam 25 and stops the rotation of the stem 16,and prevents the cam turning a half revolution whereby it would reachdead center and necessitate the operation of the handle to close thevalve. As soon as the handle is released the spring 38 expands and movesthe valve against the seat 35, pushing the block 26 forwardly within thecasing 10, and moving the cam 25 to its normal position. Since the cam25 and the lip 28 are each provided with diverging inclined faces, thestem 16 is permitted movement in either direction, and will be returned,by the spring 38, to its neutral position.v

In disassambling the parts of the valve it is only necessary to removethe cap 15 which carries therewith the stem-16 and the cam 25, removethe attaching shank 36 from the flange 13 whereby the spring 38 isreleased from the valve, and finally to unscrew the valve seat 35 fromthe shank 12 admitting of the drawing out of the block 26. When theseparts are removed from the casing 10 and shank 12 the body of thecookpresents two uninterrupted passages or channels at right angles toeach other, and opening directly through the apertures in the casing. Itis also observed that the valve can be readily cleansed and new partsreplaced when necessary, the structure admitting of the grinding or thereplacing of the valve seat and thepacking of the valve itself.

In providing a handle of disk form having the knurled projections andinterposed notches a handle is provided in which the fingers of theoperator are received and en-- gage against substantially flat faces orshoulders so that the hand can not slip around the handle.

Having fully described my invention what I claim as new is;

'1. A self-closing cock comprising a casing having a valve seat at itsinner end and an outlet nozzle at its forward end, a closely fittingmovable block inthe casinghaving a valve at its inner endv and alongitudinal passage therein adapted to establish communication betweenthe valve 'seat and the casing having a cam upon its inner end, saidblock having a transverse slot in one side adapted to receive said camwhereby the rotation of said cam moves said block to unseat said valve.

2. A self-closing cock comprising a casing having a valve seat and anoutlet nozzle therein, a closely fitting movable block in the casinghaving a valve and a longitudinal passage in one side adaptedtoestablish communication between said valve seat and said nozzle, aspring in said casing engaging said block whereby to normally seat saidvalve, and a stem mounted to turn in the casing and having a cam uponits inner end, said block having a recess in one side receiving saidcam, said recess providing a shoulder in said block and a stop oppositeto said shoulder, said cam being adapted to be turned Within the recesswhereby to bring one end of the cam against said shoulder and unseatsaid valve, the opposite end of said cam being adapted for engagementagainst said stop whereby to limit the rotation of said cam.

8. A self-closing cock comprising a casing having a valve seat at itsinner end and a depending nozzle at its outer end, a closely fittingmovable block in the casing having a valve at its inner end and providedwith a longitudinal passage in its underside adapted to establishcommunication between said valve seat and said nozzle, a spring engagingsaid block to normally seat the valve, and a stem mounted in the top ofthe casing having a disk upon its lower end to retain the stem fromdisplacement from the casing, said stem also having a cam depending fromsaid disk provided with a straight side lying substantially inparallelism with the diameter of the disk and having at its oppositeside a pair of diverging faces of equal length extending inwardly to theends of the cam, said block having a recess in its upper side for thereception of said disk and a transverse slot in the bottom of saidrecess for the reception of said cam whereby the turning of the stemengages one end of said cam against the inner wall of said slot, theupper wall of said slot comprising a pair of diverging faces of equallength extending outwardly and laterally to the ends of the wall forengagement with the diverging faces of said cam when turned whereby tolimit the rotation of the cam.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

ANTON C. SCHUERMANN.

Witnesses CHARLES G. AUER, CATHERINE E. MoKEowN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

